Grapple



Dec. 17, 1929. w, N, MARBLE 1,739,601

GRAPPLE Filed July 16, 192e a sheets-sheet 1- ummuniiilimiuuunnumnnnwm Dec. 17, 1929. w, N, MARBLE 1,739,601

GRAPPLE Filed July 16, 1928 2 Sheets-Sheet 2 4 W/wwMManbze Patented Dec. 17, 1929 UNITED STATES PATENT OFFICE WILBUR NOAH MARBLE, SHREVEPORT, LOUISIANA, ASSIGNOR OF ONE-HALF TO BERT C. OLDHAM, 'OF SHREVEPORT, LOUISIANA GRAPPLE Application led July 16, 1928. Serial No. 293,225.

This invention relates to a fishing tool especially designed for use in fishing for articles such as pipes, rods or other articles accidentally dropped into a well, during the drilling of the well.

The primary object of the invention is to provide a tool of this character in the form of a die which when lowered into the well casing may be rotated to out threads in the article to be removed by the tool so that the tool may be connected with the article andv removed from the well casing with the article.

Another object of the invention is to provide a fishing tool of this character having interchangeable bits for various purposes.

With the foregoing and other objects in view which will appear as the description proceeds the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment ofthe invention herein disclosed, may be made within the scope of what is claimed, without departing from the spirit of the invention.

Referring to the drawings: Figure 1 is a longitudinal sectional view through a fishing tool constructed in accordance with the invention, the inner removable member being shown in elevation. y

Figure 2 is a longltudinal sectional vlew through the tool.

Figure 3 is a plan view of one end of the lower section of the tool.

Figure 4 is a bottom view of the lower section of the tool. f

Figure 5 is an end view of a connecting member used for connecting adjacent sections of the tool.

Figure 6 is a longitudinal sectional view through the connecting member.

Figure 7 is a bottom view of the lower section,rthe pointed member forming a part of the inner tapered member, being removed.

Figure 8 is an elevational view of the removable end member.

Figure 9 is a side elevational view of a modified form of end member.

Figure 10 is a side elevational view ofone 5 of the removable end members.

Figure 11 is a view of one of the removable end members, taken at right angles to Figure 10. l

Figure 12 is an elevational view of a removable end member showing a modified form of end member.

Figure 13 is an elevational view taken at right angles to Figure 12.

Figure 14C is an elevational view of a rod used in rotating the removable pointed end members. Y

Figure 15 is an elevational View of a wrench i temployed for securing the sections of the Figure 16 is a further modified form of end member. 4

Referring to the drawings in detail the device embodies a plurality of sections removably connected, so that they may be dropped into a well casing to accomplish the purpose of the invention.

The reference character 5 designates the lowermost tubular section of the device, which is shown as having an inclined inner surface threaded throughout its length, as clearly shown by Figure 1 of the drawings. The section 5 is formed with grooves 5 defining a die so that the section 5 may cut thre'adsin the article in the well, to be removed. l yAt the lower end of the section 5 are cut ting blades or edges 6 designed to cut the soil or cut into the object to be removed by forcing the object against the wall of the caslng.

4 Secured within the section V5, is an inner tapered section 7 which is also provided with cutting threads so that when the tool is dropped into a well casing, the article to be removed will find its way between the threads of the section 5 and the threads of the section 7Vr and a slight rotation of the device will cause the threads to cut into the article connecting the tool to the article so that when the tool is removed, the article will be drawn from the well with the tool.

As shown by 'Figure 2 of the drawings, the inner tapered section 7 is formed with a bore 8 disposed throughout the length thereof, the lower end of the bore being 'ber 7 'and ydefine cutting `edges to cause 'the threads of the member 7? to vciit into the article to be removed. Y

An opening 13 is formed in the removable pointed member 10 and isvdesigned to receiye a rod so that rotary movement may be imparted lto the point or member 1 0 ,to position it. The removable peint shown ley Figure 9 is substantially the same as that shown iby Figure .8, eXeePt that the leed-.v portion 10 thereof A,is larger and ,is ,to be used when smaller objects are to be removed. These members 10 and 1l-are termed withitjepered extremities 11 to guide ithem to yone side of the article ,to be removed.

The upper end of the bene 8 is square to receivethe end 14 of the tool 15 so that the section `may be readily rotated' and secured. The seetien shown by Figure 6 is also termed with a bore 16 having a square upper end 17 to receive the tool that the .emceting sections may be readily positioned in amanner as described. In the forni of the inven- -ten ee illustrated Figures lO .and l2, the removable lend members .are formed with -fiat heads 18 .and 19 respectively, there bengpr vided threaded end portions 2O and`^f2l so that ,they may be seenned within the threaded .extremities of the inner member 7.

The head 19 is slightly larger than the head 18 and the upper edges thereof are lprovided with teeth 22 so that they will bite into articles to be removed from the well casing to connect `the ktool to the Aarticle SQ that when Ithe tool is removed, the article will be drawn from the well, with the tool.

A still -fnrther modified form 4of removable end `member is shown by Figure 16 and -ineltrdee e heed 24 pointed et ite free end, the

heed 'bei-Hs 4ferreed with teeth 2 5,- This end member embodies a shank 23 which in the term .et e Y red :having ,en enlarged threaded ripper end 26- .The referenee ehereeter x27 indee-tee, ber ivheh maybe inserted 1n en enemies ef e ,removable end .member te rotate the eed member fer reetieerls it In the use ,ef the device a ,suitable pointed member is eeeured within the inner section and the fishing wel is. dropped irlt0 the Well .Casina It is obvious that es the article to he removed is wedged between .the Seetens 5 and 7 and the tool rotated, threads will benut .on ,the artiele which will eeeperete with the threads of the tool securing the article te Athe tool se that it may be removed from the well.

Owing to the tapered construction of the device it will be seen that the device may be used as a tool for removing articles of various sizes and shapes. Should the article to be removed be exceptionally large, the sec- Ytion 7 may be removed and -the section 5 y.dropped into the well overy Lthe article which will become wedged between the inclined sur-y faces of the `threads vand the tool rotated to Acause threads to "he 4 out in the article'so that upon Aelevating the tool, the threads of the ,tool being in engagement with the newly cut threads of the article, may be elevated and in the hollow section, said sections having lcooperating threads -to cnt .threads into an article engaged `by vthe tool, and a threaded pointed member removably held within- -th lower end .of the inner section. I2. A fishing tool including a lower hollow section havinga tapered inner surface formed with threads and having a ylower cutting edge, a removable tapered inner section fitted within the hollow section and having threads to cooperate with thethreads Aot the lower section to cause an article to be wedged between the inner section and lower section, and a removable ip ointed 'member isecured to the inner section. Y

3. A fishing tool including a lower hollow sectionfhaving internal threads and having .a cuttingend said lower section havingl a plurality of longitudinal grooves v formed therein, an inner tapered member fitted within the lower section, said inner tapered inember having a longitudinal bore `and having lateral openings communicating .with the bore to permit fluid to be forced laterally from ,the tool. 4. In a fishing tool for fishing articles from well casings, including a lower section yhaving a cnt tingzedge, Aa tapered inner section removably held within the lower section, lsaid inner section 'having longitudinal bore and hav-, ing grooves fol-med .eXteriorly'thereo-V, and a removable pointed member secured within the lower end et the inner Seeterr- 5. In a fishing tool, a lower section having a tapered inner surface vformed with threads. throughout its length, an inner removable eeeten tapered ten/erde the lever end er1d formed with ,external threads, `the threads ef the inner section and 'lower section adapted te eeeperete te grip en artiele, Seid. intel-tl emI section having slots and having a longitudinal bore and having openings communicating With the bore to allow fluid to pass therethrough.

In testimony that I claim the foregoing as my own, I have hereto affixed my signature.

VVILBUR NOAH MARBLE. 

